Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) menu "GCOV-based kernel profiling"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) config GCOV_KERNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 	bool "Enable gcov-based kernel profiling"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 	depends on DEBUG_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 	select CONSTRUCTORS if !UML
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	This option enables gcov-based code profiling (e.g. for code coverage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	measurements).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	Additionally specify CONFIG_GCOV_PROFILE_ALL=y to get profiling data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	for the entire kernel. To enable profiling for specific files or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	directories, add a line similar to the following to the respective
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	Makefile:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	For a single file (e.g. main.o):
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	        GCOV_PROFILE_main.o := y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	For all files in one directory:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	        GCOV_PROFILE := y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	To exclude files from being profiled even when CONFIG_GCOV_PROFILE_ALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	is specified, use:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	        GCOV_PROFILE_main.o := n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	and:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	        GCOV_PROFILE := n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	Note that the debugfs filesystem has to be mounted to access
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	profiling data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) config ARCH_HAS_GCOV_PROFILE_ALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	def_bool n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) config GCOV_PROFILE_ALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	bool "Profile entire Kernel"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	depends on !COMPILE_TEST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	depends on GCOV_KERNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	depends on ARCH_HAS_GCOV_PROFILE_ALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	This options activates profiling for the entire kernel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	Note that a kernel compiled with profiling flags will be significantly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	larger and run slower. Also be sure to exclude files from profiling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	which are not linked to the kernel image to prevent linker errors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) endmenu